Enthalpy and mass flowrate measurements for two-phase geothermal production by Tracer dilution techniques

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A new technique has been developed for the measurement of steam mass flowrate, water mass flowrate and total enthalpy of two-phase fluids produced from geothermal wells. The method involves precisely metered injection of liquid and vapor phase tracers into the two-phase production pipeline and concurrent sampling of each phase downstream of the injection point. Subsequent chemical analysis of the steam and water samples for tracer content enables the calculation of mass flowrate for each phase given the known mass injection rates of tracer. This technique has now been used extensively at the Coso geothermal project, owned and operated by California ... continued below

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17-27

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Hirtz, Paul; Lovekin, Jim; Copp, John; Buck, Cliff & Adams, Mike January 28, 1993.

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Description

A new technique has been developed for the measurement of steam mass flowrate, water mass flowrate and total enthalpy of two-phase fluids produced from geothermal wells. The method involves precisely metered injection of liquid and vapor phase tracers into the two-phase production pipeline and concurrent sampling of each phase downstream of the injection point. Subsequent chemical analysis of the steam and water samples for tracer content enables the calculation of mass flowrate for each phase given the known mass injection rates of tracer. This technique has now been used extensively at the Coso geothermal project, owned and operated by California Energy Company. Initial validation of the method was performed at the Roosevelt Hot Springs geothermal project on wells producing to individual production separators equipped with orificeplate flowmeters for each phase.

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17-27

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  • Proceedings, eighteenth workshop on geothermal reservoir engineering, Stanford University, Stanford, CA, January 26-28, 1993

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  • Report No.: SGP-TR-145-4
  • Grant Number: None
  • Office of Scientific & Technical Information Report Number: 888882
  • Archival Resource Key: ark:/67531/metadc885122

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 28, 1993

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  • Sept. 21, 2016, 2:29 a.m.

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  • Feb. 16, 2017, 8:52 p.m.

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Hirtz, Paul; Lovekin, Jim; Copp, John; Buck, Cliff & Adams, Mike. Enthalpy and mass flowrate measurements for two-phase geothermal production by Tracer dilution techniques, article, January 28, 1993; (digital.library.unt.edu/ark:/67531/metadc885122/: accessed January 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.